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Disclosery

ERAS ERASCA INC

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Stock (common), issuer CIK 1761918

216 managers (225 13F filers) reported a position in ERAS shares at 2026-03-31, 273,472,864 shares in all. 90 filers opened a position and 23 filers sold out during the quarter.

Managers
216
13F filers
225
New
90
Added
77
Reduced
39
Sold out
23
Shares held by filers
273,472,864

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Frazier Life Sciences Management, L.P.24,675,188$399M10.27%+1,945,75213F-HRTimeline
T. Rowe Price Investment Management, In…21,259,646$344M0.24%+5,148,23213F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.20,151,406$326M0.01%+4,554,07613F-HRTimelineGroup
Venrock Adviser, LLC16,382,812$265M9.89%-1,474,27113F-HRTimeline
RTW INVESTMENTS, LP16,157,175$261M2.6%+16,010,52413F-HRTimeline
VANGUARD GROUP INCgroup of 7 filers holding14,878,011$241M+14,843,352Timeline
Vivo Capital, LLC12,151,480$197M16.34%+2,878,05213F-HR/ATimeline
Siren, L.L.C.in group Siren, L.L.C.11,244,246$182M5.04%+2,486,99713F-HRTimelineGroup
Logos Global Management LP11,150,000$180M9.29%-1,850,00013F-HRTimeline
Paradigm Biocapital Advisors LPin group Paradigm Biocapital Advisors …10,392,702$168M3.44%-3,766,39313F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP9,300,084$150M0.01%+3,125,44213F-HRTimelineGroup
ARCH Venture Management, LLC7,091,557$115M16.95%-3,963,99713F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC5,996,149$97M0.01%+1,069,81413F-HRTimelineGroup
Cormorant Asset Management, LP5,800,000$93.8M4.73%new13F-HRTimeline
Affinity Asset Advisors, LLC5,350,000$86.6M5.08%+1,450,00013F-HRTimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management5,143,985$83.2M0.16%+5,045,91213F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC4,875,186$78.9M0.01%+1,543,76813F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson3,710,966$60M0.03%new13F-HR/ATimelineGroup
5AM Venture Management, LLC3,485,971$56.4M15.66%-1,919,43313F-HRTimeline
MONTANOVA CAPITAL, LLC3,434,967$55.6M1.51%-11,067,03713F-HRTimeline
Commodore Capital LPin group Commodore Capital LP3,175,000$51.4M2.97%new13F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/3,055,897$49.4M<0.01%+1,444,04713F-HRTimelineGroup
a16z Capital Management, L.L.C.in group a16z Capital Management, L.L.…2,862,500$46.3M3.59%013F-HRTimelineGroup
Woodline Partners LP2,831,538$45.8M0.17%+900,89613F-HR/ATimeline
UBS Group AGgroup of 2 filers holding2,107,587$34.1M+1,937,056Timeline
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…2,100,000$34M0.05%new13F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co1,898,224$30.7M<0.01%+224,82013F-HRTimelineGroup
SILVERARC CAPITAL MANAGEMENT, LLCin group SILVERARC CAPITAL MANAGEMENT,…1,851,812$30M3.53%+534,22813F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/1,815,340$29.4M<0.01%+1,711,83713F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP1,786,389$28.9M0.01%+10,70413F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP1,701,623$27.5M<0.01%+370,11513F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC1,654,497$26.8M0.02%+1,636,10613F-HRTimeline
FMR LLCin group FMR LLC1,490,080$24.1M<0.01%+968,62513F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC1,398,869$22.6M0.04%+548,76913F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.1,219,534$19.7M0.02%+1,017,59613F-HRTimelineGroup
Rock Springs Capital Management LP1,103,469$17.9M1.05%+151,75913F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS1,087,301$17.6M0.01%+1,054,81513F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY989,210$16M<0.01%+178,82513F-HRTimelineGroup
EcoR1 Capital, LLC900,000$14.6M0.62%new13F-HRTimeline
First Turn Management, LLC867,639$14M1.57%new13F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO924,405$13.8M<0.01%-228,68513F-HR/ATimelineGroup
Holocene Advisors, LP760,722$12.3M0.03%new13F-HRTimeline
Invesco Ltd.in group Invesco Ltd.759,932$12.3M<0.01%+430,13713F-HRTimelineGroup
Integral Health Asset Management, LLC700,000$11.3M0.6%new13F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.693,309$11.2M0.02%new13F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC691,205$11.2M0.01%+21,32913F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC670,597$10.9M<0.01%new13F-HR/ATimelineGroup
ALLIANCEBERNSTEIN L.P.2,644,920$9.84M<0.01%+2,436,11013F-HRTimeline
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…595,379$9.63M<0.01%+52,18313F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC575,996$9.32M0.01%-1,661,95513F-HRTimelineGroup
ExodusPoint Capital Management, LP575,715$9.32M0.09%-915,25213F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp559,629$9.05M<0.01%+12,85313F-HRTimelineGroup
Nuveen, LLCin group TIAA543,021$8.79M<0.01%+118,30813F-HRTimelineGroup
Ensign Peak Advisors, Inc500,723$8.1M0.02%new13F-HR/ATimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC498,381$8.06M0.01%-531,96413F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC455,019$7.36M0.01%-457,50013F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP426,526$6.9M0.01%+364,56613F-HRTimelineGroup
Spruce Street Capital LP422,543$6.84M1.64%-3,467,08913F-HRTimeline
Creative Planningin group Creative Planning418,834$6.78M<0.01%+37,13913F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC416,715$6.74M0.01%+403,96013F-HRTimelineGroup
Parkman Healthcare Partners LLC406,702$6.58M0.68%new13F-HRTimeline
TD Asset Management Inc394,260$6.38M0.01%+164,42013F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC380,977$6.16M<0.01%+215,61813F-HRTimelineGroup
Polymer Capital Management (HK) LTD357,670$5.79M0.81%new13F-HRTimeline
ACUTA CAPITAL PARTNERS, LLC354,575$5.74M4.08%new13F-HRTimeline
Atom Investors LP345,587$5.59M0.4%new13F-HRTimeline
KVP Capital Advisors, LP340,000$5.5M4.11%new13F-HRTimeline
Swiss National Bank336,800$5.45M<0.01%new13F-HRTimeline
Trexquant Investment LP301,066$4.87M0.04%new13F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC253,554$4.1M<0.01%+220,36713F-HRTimelineGroup
SIMPLEX TRADING, LLC252,747$4.09M0.13%-93,32513F-HRTimeline
Rafferty Asset Management, LLC251,963$4.08M0.02%+120,94413F-HRTimeline
RHUMBLINE ADVISERS242,636$3.93M<0.01%+53,62413F-HRTimeline
STEMPOINT CAPITAL LP239,861$3.88M0.75%new13F-HR/ATimeline
FRED ALGER MANAGEMENT, LLCin group FRED ALGER MANAGEMENT, LLC236,824$3.83M0.02%new13F-HRTimelineGroup
Tidal Investments LLCin group Tidal Investments LLC226,877$3.67M0.01%new13F-HRTimelineGroup
Tema ETFs LLC226,877$3.67M0.25%new13F-HRTimeline
Seven Fleet Capital Management LP222,468$3.6M1.13%new13F-HR/ATimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …216,614$3.5M<0.01%+161,84513F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding212,734$3.44M-46,141Timeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…204,449$3.31M<0.01%+193,76013F-HRTimeline
TANG CAPITAL MANAGEMENT LLCin group TANG CAPITAL MANAGEMENT LLC200,000$3.24M0.16%-700,00013F-HRTimelineGroup
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…208,273$3.14M<0.01%new13F-HRTimelineGroup
HighVista Strategies LLC181,069$2.93M0.81%new13F-HRTimeline
Cinctive Capital Management LP171,920$2.78M0.18%new13F-HRTimeline
Longaeva Partners L.P.171,233$2.77M0.13%new13F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\163,326$2.64M<0.01%+41,34913F-HRTimelineGroup
NATIXISin group Natixis Investment Managers163,192$2.64M0.01%new13F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd147,618$2.39M0.04%+136,82013F-HRTimelineGroup
Informed Momentum Co LLC137,925$2.23M0.26%new13F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc133,444$2.16M<0.01%+118,01613F-HRTimelineGroup
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding122,978$1.97M+20,959Timeline
PROFUND ADVISORS LLC113,216$1.83M0.07%+62,61113F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN107,176$1.73M<0.01%-112,95613F-HR/ATimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…103,644$1.68M0.01%+23,27613F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources101,827$1.65M<0.01%new13F-HRTimelineGroup
Burkehill Global Management, LP100,000$1.62M0.08%new13F-HRTimeline
SEVEN GRAND MANAGERS, LLC100,000$1.62M0.11%new13F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD98,609$1.6M<0.01%new13F-HRTimeline
J. Goldman & Co LP98,033$1.59M0.07%new13F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC94,685$1.53M<0.01%-163,59013F-HRTimelineGroup
ALGERT GLOBAL LLC88,030$1.42M0.02%new13F-HR/ATimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC82,678$1.34M<0.01%new13F-HRTimelineGroup
Cresset Asset Management, LLC79,961$1.29M0.01%+4813F-HRTimeline
ArrowMark Colorado Holdings LLC79,052$1.28M0.03%new13F-HRTimeline
Virtus Investment Advisers, LLCin group Virtus Investment Advisers, L…75,746$1.23M0.34%+1,85013F-HRTimelineGroup
Harvest Investment Services, LLC73,744$1.19M0.22%new13F-HRTimeline
Schonfeld Strategic Advisors LLC68,048$1.1M0.01%new13F-HRTimeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…65,350$1.06M0.01%-92,67013F-HRTimelineGroup
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…58,176$941K<0.01%new13F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC57,533$931K0.01%-33,18713F-HRTimeline
GILDER GAGNON HOWE & CO LLC56,597$916K0.01%new13F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC55,760$902K<0.01%-5,77613F-HRTimelineGroup
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…55,104$892K0.01%+2,37313F-HRTimelineGroup
China Universal Asset Management Co., L…54,939$889K0.07%+8,70813F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND54,759$886K<0.01%-80013F-HRTimeline
Police & Firemen's Retirement System of…51,471$833K0.01%+7,44113F-HRTimeline
CITIGROUP INCin group CITIGROUP INC49,110$795K<0.01%-46,66013F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…47,918$775K<0.01%new13F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM46,757$757K<0.01%new13F-HRTimeline
Connor, Clark & Lunn Investment Managem…45,338$734K<0.01%new13F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC45,079$729K<0.01%-357,71713F-HRTimelineGroup
SG Americas Securities, LLC44,697$723K<0.01%-3,98013F-HRTimeline
MASSACHUSETTS FINANCIAL SERVICES CO /MA/in group MASSACHUSETTS FINANCIAL SERVI…42,340$685K<0.01%new13F-HRTimelineGroup
ProShare Advisors LLC41,346$669K<0.01%-2,87013F-HRTimeline
KLP KAPITALFORVALTNING AS37,500$607K<0.01%new13F-HRTimeline
Verdad Advisers, LP33,070$535K0.6%new13F-HRTimeline
STRS OHIO33,000$534K<0.01%new13F-HRTimeline
CWM, LLCin group CWM, LLC32,756$530K<0.01%-84913F-HRTimelineGroup
E Fund Management Co., Ltd.32,605$528K0.02%13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…32,305$523K0.01%+25,42113F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO31,760$514K<0.01%+15,07813F-HRTimelineGroup
Marks Group Wealth Management, Inc29,879$483K0.05%new13F-HRTimeline
Persistent Asset Partners Ltd28,270$457K0.18%new13F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…27,777$449K<0.01%new13F-HRTimeline
FORA Capital, LLC26,806$433K0.03%new13F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…23,392$417K<0.01%+88713F-HRTimeline
Arrowpoint Investment Partners (Singapo…in group Arrowpoint Investment Partner…24,847$402K0.58%new13F-HRTimelineGroup
Quantbot Technologies LP23,226$376K0.02%new13F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS22,076$357K<0.01%new13F-HRTimeline
Quadrature Capital Ltdin group Quadrature Capital Ltd21,688$351K<0.01%+8,52613F-HRTimelineGroup
Allianz Asset Management GmbHin group Allianz SE19,900$322K<0.01%new13F-HRTimelineGroup
Mariner, LLCin group Mariner, LLC18,728$303K<0.01%+7,90313F-HRTimelineGroup
LANDSCAPE CAPITAL MANAGEMENT, L.L.C.in group LANDSCAPE CAPITAL MANAGEMENT,…18,736$303K0.02%new13F-HRTimelineGroup
Scientech Research LLC18,170$294K0.25%-54,03313F-HRTimeline
FARALLON CAPITAL MANAGEMENT, L.L.C.18,000$291K<0.01%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Baader Bank Aktiengesellschaft18,000$291K0.03%new13F-HRTimeline
XPONANCE LLC17,330$280K<0.01%+3,84013F-HRTimeline
Odyssean, LLC17,329$280K0.1%new13F-HRTimeline
PSP Research LLC17,327$280K0.2%new13F-HRTimeline
QUADRANT CAPITAL GROUP LLC17,073$276K0.01%-47313F-HR/ATimeline
Abel Hall, LLC16,947$274K0.06%+1,26513F-HRTimeline
OXFORD ASSET MANAGEMENT LLP16,752$271K0.11%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP15,800$256K<0.01%-22,22413F-HRTimelineGroup
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …15,773$255K<0.01%new13F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…15,524$251K0.01%+87913F-HRTimelineGroup
Wealthcare Advisory Partners LLCin group Wealthcare Advisory Partners …15,168$245K<0.01%013F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…14,296$231K<0.01%-8213F-HRTimelineGroup
Ballentine Partners, LLC14,004$227K<0.01%+813F-HRTimeline
LPL Financial LLC13,292$215K<0.01%new13F-HRTimeline
BAILARD, INC.13,146$213K<0.01%-22,09213F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC12,431$200K<0.01%new13F-HRTimelineGroup
Swiss Life Asset Management Ltdin group Swiss Life Asset Management L…12,210$198K<0.01%new13F-HRTimelineGroup
Pallas Capital Advisors LLC12,148$197K0.01%-1,77713F-HRTimeline
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP12,037$195K<0.01%+1,73713F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC11,641$188K<0.01%+7,23113F-HRTimeline
DNB Asset Management ASin group DNB Asset Management AS11,477$186K<0.01%new13F-HRTimelineGroup
WINTON GROUP Ltdin group WINTON GROUP Ltd10,600$172K0.01%new13F-HRTimelineGroup
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC10,000$162K0.01%new13F-HRTimelineGroup
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP9,630$144K<0.01%new13F-HRTimelineGroup
SIGNATUREFD, LLC7,397$120K<0.01%+29713F-HRTimeline
GF FUND MANAGEMENT CO. LTD.6,372$103K<0.01%+79813F-HRTimeline
Sterling Capital Management LLC6,348$103K<0.01%-3,75513F-HRTimeline
State of Wyoming5,850$94.7K0.01%new13F-HRTimeline
KBC Group NVin group KBC Group NV4,996$81K<0.01%new13F-HRTimelineGroup
Sio Capital Management, LLC5,000$80.9K0.01%new13F-HRTimeline
Parallel Advisors, LLC4,295$69.5K<0.01%+6813F-HR/ATimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…4,249$68.7K<0.01%+1,85913F-HR/ATimelineGroup
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…3,342$54.1K<0.01%+2,68613F-HRTimelineGroup
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …3,073$49.7K<0.01%new13F-HRTimelineGroup
Farther Finance Advisors, LLC2,334$38.7K<0.01%+613F-HRTimeline
Kemnay Advisory Services Inc.2,143$34.7K0.01%new13F-HRTimeline
GAMMA Investing LLC2,004$32.4K<0.01%+39213F-HRTimeline
Allworth Financial LP1,874$30.3K<0.01%-7413F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC1,845$29.9K<0.01%new13F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC1,587$26K<0.01%013F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…1,471$23.8K<0.01%+1,46313F-HRTimelineGroup
Physician Wealth Advisors, Inc.1,192$19.3K<0.01%013F-HRTimeline
True Wealth Design, LLC1,116$18.1K0.01%013F-HRTimeline
Caitong International Asset Management …1,037$16.8K<0.01%new13F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.1,005$16.3K<0.01%013F-HRTimelineGroup
E Fund Management (Hong Kong) Co., Ltd.932$15.1K0.01%new13F-HRTimeline
ROTHSCHILD INVESTMENT LLC503$8.14K<0.01%+10913F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.460$7.44K<0.01%-46013F-HR/ATimelineGroup
Essential Partners LLC459$7.43K<0.01%013F-HRTimeline
Basecamp Wealth Advisors LLC444$7.18K<0.01%new13F-HRTimeline
Rialto Wealth Management, LLC413$6.68K<0.01%013F-HRTimeline
Cornerstone Financial Management LLC338$5.47K0.01%013F-HR/ATimeline
US BANCORP \DE\in group US BANCORP \DE\295$4.77K<0.01%new13F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA239$4K<0.01%-4,76713F-HRTimelineGroup